Learn how HES uses TLS to send emails.
Transport Layer Security (TLS) is a protocol that helps to secure data and ensure communication privacy between endpoints. HES allows you to configure TLS encryption policies between HES and specified TLS peers. HES supports the following TLS protocols in descending order of priority: TLS 1.2, TLS 1.1, TLS 1.0, and SSL 3.0.
The Transport Layer Security (TLS) screen uses the following important terms:
|TLS peer||HES can apply your specified TLS configuration with this domain during network communications.|
To ensure messages can be received from the HES MTA, configure your firewall to accept email messages from the following HES IP address / CIDR blocks:
Otherwise, the "Default" TLS configuration applies.
|Default (TLS Peer)||
This configuration applies to all domains that meet any of the following criteria: